Improvement in shuttles for looms



T. E. ROBERTS. Shuttle for Looms.

No. 214,317. Ratented April 15,1879.

[22m (en/Z024 m'mcsses.

NJETERS. FHOTO-UTMDGRAFHER. WASHINGTON D C UNITED STATES PATENT QFFIOE.

THOMAS E. ROBERTS, OF BOSTON, ASSIGNOR TO AMOS vL. WOOD, TRUSTEE,

OF BROOKLINE, MASSACHUSETTS.

IMPROVEMENT IN SHUTTLES FOR LOOMS.

Specification forming part of Letters Patent No. 214,317, dated April15, 1879; application filed May 13, 1878.

To all whom it may concern:

Be it known that I, Tnos. E. ROBERTS, of Boston, in the county ofSuffolk and Commonwealth of Massachusetts, have invented a new anduseful Improvement in Shuttles for Looms, of which the following is aspecification.

My invention consists in an improved construction of shuttles for looms,in which the spindle-head and its carrier or holder and retainin gspring are placed and secured in a chamber in the end of the woodenframe of the shuttle, the latter having no lateral opening, and no pinor screw passing transversely through or into the wooden frame, while ascrew projecting from the base of the metallic shuttle-point extendsinto the chamber in the wooden frame of the shuttle, there engaging,with its thread, a corresponding threaded opening in the end of thespindle holder or carrier, and securely holding the carrier or holder inits position in the shuttle.

In the drawings annexed, Figure 1 shows a sectional side View of ashuttle-frame, with its chambered end containing the spindle-head, itscarrier or holder, spring, and the metallic shuttle-point, with thescrew projecting from its base engaging the threaded opening in thecarrier or holder. Fig. 2 is an isometric view of the spindle-head andits carrier or holder.

a is the spindle. b is the head of the spindie. 0 is the spring. (I isthe carrier or holder. e is a rivet or pin that passes through the sidesof the carrier or holder and a lug on the spring, to hold the spring inits proper place. 0 is a rivet or pin through the forward end of thecarrier or holder and the head of the spindle, upon which the spindlehinges. g is the metallic shuttle-point, and k is the screw extendingfrom the base of the shuttle-point to and into the carrier or holder. mis a pinhole in the metallic shuttle-point, in which the prong of asuitable wrench engages to turn the screw k. 'r is a flange or lip onthe under side of the spindle-head. n is a set screw through theprojecting lip or flange on the under side of the spindle-head, whichcovers and rests against the end of the spring, by which thespindle-point may be raised, when desirable, by turning the set screwforward, and

again lowered by withdrawing the set-screw a little.

The shuttle-frame is made with the usual longitudinal cavity in itsmiddle part, to give space for the bobbin on the spindle, and the usualopening from its forward end for the yarn to be drawn through. The rearend of the shuttle-frame is chambered from the bobbin-cavity toward therear end to admit the spindle-head carrier or holder, and has no lateralopening on its top, bottom, or sides, and has no holes for pins orscrews or other fastening devices through or into it transversely, thusleaving it with a smooth outside surface, with no possibility of loosescrews, pins, or springs protruding to damage the yarn, web, or reed inthe loom.

To the rear end of the chamber just described a hole is bored throughthe rear end of the shuttle, which admits the screw k. The forward endof the chamber is enlarged upward to allow the spindle to be raised toreceive the bobbin, and downward to allow the necessary motion of thespring when the spindle is raised.

The spindle is made in the ordinary form, with the flange or lip on theunder side of the head, which is made to rest on and cover the end ofthe spring, and through which flange or lip a set-screw may be worked toraise the forward end of the spindle a little when necessary.

The carrier or holder is made in one piece of wrought or malleablecast-iron, with a longitudinal cavity in the middle extending to theforward end of it, in which the spindlehead and the spring are locatedand held, while the rear end of it is made solid, with a threadedaperture to receive the screw is, extending from the base of the forwardmetallic shuttle-point.

lhe advantages of a shuttle which has no openings for springs, pins, andscrews in its frame, but, on the contrary, presents a perfectly smoothoutside, where a possibility of loose pin or other part injuring the webor loom does not exist, are obvious.

I claim as new- In a loom-shuttle, in combination, the wooden stantiallyas described, and for the purpose specified.

THOS. E. ROBERTS.

Witnesses:

M. LUSCOMB, F. T. TAI'LEY.

